he was a singer with the baltimore choral arts society. he sang with the choral arts society for five years. and it was outside his musical life that the national institutes of health researcher was gunned down outside of his home near herring run park. police believe he may have been the victim of a robbery. he was an upstanding citizen and the wrong place at the wrong time. >> his professional colleagues know him as a great researcher and a great scientist. i know him as -- we know him as a great friend and a great singer. this is a guy you loved being around and who lit up the room when he -- came in. >> reporter: if you have any information leading to an arrest. police and that you call 1-866- 7lockup. reporting live in downtown baltimore, sherrie johnson, abc2 news. >>> if you've been to monarch med spa you will want the pay close attention to the next story. the clinic has been shut down after three patients came down with an infection one of them ended up dying. now the investigation is focused now on people who work there in and th